Machine



(N-o Model.) 6 sheets-sheen 1,

E. FRANCK. IRGULAR KNITTING MACHINE.

No. 504,417. Patented Sept. 5, 1893.

@Sheets-Sheet 2.

(No Model.) r Y E. FRANCK.

CIRCULAR KNITTINC BMCHINE.4

Patented Sept. 5,1893.

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(No Model.) eshets-'sneete t E. FRANCK.

eIRcULAR KNITTING MACHINE. No. 504,417. A Patented Sept. 5, 1893.v

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IIIHI 6 Sltleets-Sheet. 4.

(rNo Model.)

E CIRCULAR KNITTING MACHINE.

FRANCK.

Patented Sept. 5

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(No Model.)

6 sheets-snm".5.` EfFRANGK. CIRCULAR KNITTING MACHINE. f

PatentedSep;I 5, 1 893.

(No Model.) 6 sheats-sheen 6."

E. FRANCK. GIRGULAR KNITTING M'AGHINEl PatentedSept.' 5, 1893.

UNITED *STA-Tas' PATENT OFFICE.

EMIL FRANCK, OF PHILADELPHIA, PENNSYLVANIA, ASSIGNOR, BY MESNEASSIGNMENTS, TO THE NATIONAL AUTOMATIC KNITTER COMPANY, OF

f SAME PLACE.

CIRCULAR-.KNITTING MACHINE.

SPECIFICATION forming part of Letters Patent No. 504,417, datedSeptember5, 1893. Application iled May 19,1890. Serial No. 352,325. (No inodel.)

Be it known that I, EMIL FRANCK, a citizenof the United States, and aresident of Philadelphia, Pennsylvania, have invented certainImprovements in Circular-Knitting Machines, of which the following is aspecification.

My invention consists of certain improvements upon or additions to theknittingr machine for which I obtained Letters Patent of the UnitedStates, No. 419,513, dated January 14, 1890, the particular character ofthese improvements and their purpose or object being fully set forthhereinafter, and the special features of construction formingqthesubject of the present invention being set forth in the claims.

In the accompanying drawings, Figure 1, is a longitudinal section,partly in elevation of a knitting machine constructed in accordance withmy prese 1t invention. Fig. 2, is a plan of the same with the needlecylinder, needle actuating cam ring and parts carried thereby removed.Fig. 3, is an end view of part of the machine, looking in the directionof the arrow w, Fig. l. Fig. 4, is a transverse section on the line a:Fig. l looking in the direction of the arrow w', Fig. 1. Fig. 5, is atransverse section, partly in elevation of part of the machine on theline y y, Fig. l, also looking in the direction of the arrow w. Fig. 6,is a plan of the head of the machine. Fig. 7, is a top view of part ofthe machine on the line e e, Fig. 1; and Figs. 8 to 33 are detachedviews illustrating certain features of construction of the machine.

The tiXed frame of the machine is represented at 1 and is intended to bemounted upon legs or standards so as to support it at a proper distanceabove the door. kOn this fixed frame is firmly securedthe bed 2 of theknitting machine, which,in the present instance, is in the form of anannular frame in the upper portion of which is a recess forming abearing for a bevel wheel 3 which forms part of the cam ring 4 of themachine, or it may be secured thereto inI any appropriate manner, saidbevel wheel being held in place vertically by a plate 5 which isboltedto suitable bosses on the bed plate 2, so that it can be readily removedwhen it becomes necessary to remove the cam ring.

The cam ring 4 is shown in detail at Fig. 8, on reference to which itwill be seen that the ring has two side cams 6, 6, a lower lifting cam7, an upper sliding cam 8, and pivoted wing cams 9, 9, adjacent to theouter edges of the side cams 6, the top cam 8, having lateralprojections l0, with beveled ends and these projections having slots 11for the reception of pins 12, on the cam ring, so as to permit of thedesired lateral sliding movement of the said top cam. By reason of thisarrangement, when the cam ring is moving say from left to right, or inthe direction of the arrow, the bits of the needles, Fig. 8, rise uponthe wing cam 9, at the right hand side and pass thence over the righthand side `.the cam ring moves from right to left the operation issimply reversed, the bits of the needles passing above the left handwing cam and side cam and moving the top cam into contact with the righthand side cam, the bits then passing under said right hand cam andlifting the righ-t vhand wing cam as they emerge. ``The b'eveling of theends .of the lateral projections 10, of the top cam 8, serves properlyto direct the bits of the needles beneath said projections in the eventof their being carried too high as they rise on the side cam 6, breakingof the bits of the needles, such as would be caused by their contactwith an abrupt shoulder on lthe top cam, being thereby prevented. Theneedle cylinder 15, tits snugly in the central opening of the cam ringand has a downwardly projecting leg 16,

`which is adapted to a recess 17, in the fixed frame 1, and is supportedupon a set screw 18, carried-by a cross bar 19, at the lower end of saidrecessed portion of the frame, and said frame has laterally projectingpins 20, upon which is mounted a clamping yoke 21, threaded for thereception of a screw 22, which is provided with an operating lever 23,and bears upon the back of the projection of the frame, as shown in Fig.9. When the screw 22, isin the position shown in Figs. 1 and 9 it servesto press the leg 16, of the needle cylinder Erlnly into the recess 17,and thereby locks the cylinder in position, but upon slackening thescrew by manipulation of the lever 23, the needle cylinder is releasedand may be readily removed and a fresh cylinder inserted in its placeand locked in position by a reverse movement of the lever as will bereadily understood. By adjustment of the set screw 18, the verticalposition of the needle cylinder in respect to the cam ring isdetermined, and the length of stitch drawn by the needles thusregulated.

A modiiied form of locking device is shown in Figs. 10, 10?L and 11, andconsistsv of a laterally sliding bolt, 200, guided in notches 201, inthe frame 2,y and having a beveled portion, 202, which engages with arecess 203, in the front of the leg 16. In this case the leg 16 islocked by the downward pressureof the beveled lug 202 and not by beingthrust laterally into the recess 17 as in the constructionV i around onehalf of the head and which are to remain out of action during theformation i ot the pocket or bulge on the tube by to and l .f ting cams.

froknittingyare similar to that represented` fro knitting aroundtheother half` of the head `are similar to that represented in Fig. `12the`stern of the-needle havingat the lower end a projecting'bit 27, for.the action of the knitlhe needles ofthe fashioning set which areintended to be thrown into and out of action in order to eect thenarrowingand widening ofthe knitted web during to and their lower endsin order to carry their bitsV 27 inward beyond the range of the knitting`cams on the cam ring 4. The central nee- `dles of the fashioning setare similar to that shown in Fig. 14, andare the same as .the needlesshown in Fig. l2, with the exception that the bit 27, is somewhatshorter than `the bits of the needles of Fig. 12. 'lhe object of makingthese latter bits long is to permit of the ready elevation of theneedles around one half of the needle cylinder, so as to carry theirbits away from the influence of the knitting cams and thus throw saidneedles out of action during the time that the to and fro knitting isbeing carried on upon the needles around the other half of the cylinder.This `elevation of the needles is eiected by means of a switch plate 30,which is carried by a shaft 31, mounted in a bearing 32, on the cam ring4. The switch plate 30, is capable of assuming two positions, asrepresented in Figs. 15 and 16, being retained in either of thesepositions, so far as regards accidental displacement, by `means of aspring plate 33, which acts upon a pin 34, projecting from the hub 35,`of the switch plate. When said plate is adjusted to the position shownin Fig. 15, its outer end bears upon the needle rest 13, ofthe cam ring.Hence, as the latter is rotated, the plate passes under the long bits ofthe needles 24, and raises the same to inoperative position. When theswitch plate is adjusted toithe position shown in Fig. 16 the under sideof said plate acts upon the elevated `bits of the needles 24, andrestores the same to operative position. The outer end ofthe shaft 31,has an arm. 36, with anti-friction roller 37, which is acted upon bydevices described hereinafter so asto effect the automatic shifting ofthe switch plate 30, at the proper times and thus insure `.the throwingout of action and bringinginto action of the needles around one half ofthe needle cylinder.

The ribs v40, between theneedle grooves of the cylinder` 15, are notchedso as to form a groove `for the reception of the spring 41,

which binds upon the needles and serves to retain thesame in theirvertical position when they havebeen elevated, and in said ribs 40,above thegroove which` receives `the spring 41, arenotches forming asecondA groove for the reception of the ring 42 which,.as shown in Fig.17,.is made in two` parts, 43 and 44,

i the parts having lugs 45, which are secured together by set screws 46.i `Each part of the ring is somewhat less than a half r circle, so thata gap 47, is formed inthe ring at one side to permitof `the removal from`the cylinder 15, of any one of `the needles `into line with which thegap has been moved, the screw 46, at vthis side of the ring being so farbeyond the inner periphery of said ring as `not to interfere with thewithdrawal of the needle bit through the gap. By this` means any of theneedlesiof the cylinder can be readily removed and new needles 4insertedin their places.

There is a web holding structure at the top ofthe needle cylinder and itwill be understood that this is removed preparatory to removingorreplacing a needle. This web holding structure consists-of a ring 50,supported vertically upon the ring 42, and secured to the needlecylinder by set screws 51, which bear upon the ribs 40, of the cylinder,as shown in Fig. 1. The ring 50, has radial grooves for the reception ofa series ofsliding'web-holding plates 52, one for every needle, or forevery two or three needles of the cylinder, these web holding plateshaving bits which enter a cam slot 53, (see dotted lines Fig. 6) in aring 54, sup- IIO j lower portions will push inward or knock ported uponthe ring 50, so as to be free to turn thereon, said ring 54 having aplate 55 with segmental recess 56 into which projects a post 57extending upward from the cam ring 4, the upper end of said post havinga pivoted arm 58vcarrying the thread guide 59, as shown in Fig. 6. Theribs r of the needle cylinder extend tothe top of the same and serve assinkers over which the stitches are drawn by the needles as theydescend, and the web holding plates 52 work closely to the top of theneedle cylinder so that, as they are projected, their over the stitchescast by the descending needles. Each web holding plate is notched at theinner end as shown in Fig. 1, so that after knocking over a stitch theprojecting upper lug or finger of the plate will catch said stitch andprevent it from rising' with the' needle when the latter is againlifted. As the cam ring 54 is rotated or reciprocated therefore, theplates 52 will be advanced and retracted, and will properly knock overthe stitches and then prevent the rise of the same with the needles, thesegmental slot 56 in the plate 55, providing for the 10st motionnecessary in order that the thread guide will always have the properlead of the cam plate in to-and-fro work, and the cam slot 53 of thering 54 being such that the web holders will be retracted at the pointwhere the needles are drawing the stitch, as shown in Fig. 6, it beingunderstood that in that view the thread guide is moving in the directionof the arrow, and the needles are drawing the stitches immediately inrear of the center of the guide where the thread delivering eye islocated.

I will next describe the mechanism whereby the rotating andreciprocating or to-and-fro movements are imparted to the cam ring 4.The bevel wheel 3, of said ring meshes into a bevel wheel 60, the bedplate 2, being suitably cut away at one side as shown in Figs. 1 and 2,in order to permit this. rlhe wheel 60, is carried by a shaft 61,whichis mounted at one end in a bearing in'the frame 1, and at the other endin a sleeve 74, turning in a bearing iu said frame as describedhereinafter, the outer end of said shaft 61, being provided with a crank62, Fig. 18, so that the parts maybe operated by hand if desired.Loosely mounted on the shaft 61, is a pulley 63, which has, at one side,projecting pins 64, for engagement with a bar 65, on an eccentric 66,secured to the shaft 6l, as shown in Figs. 1 and 4, the opposite side ofthe pulley having a hub 67, with groove 68, for the reception of ashifter fork 69, on a shifter lever 70, referred to hereinafter.

The hub 67, has a bar 71,which, under the circumstances describedhereinafter, is caused Vto engage with lugs or pins 72, on a sprocketwheel 73, mounted so as to turn freely on the sleeve 74, before referredto as constituting one of the bearings for the shaft 61. To a suitablebearing in a standard 75, on the floor beneath the machine, is adapted ashaft 76,

equivalent flexible material, and preferably cut from one piece ofmaterial in the form shown in Figs. 2, 18 and 20,*said strap passingaround and being secured to a drum 84, lmounted on the sleeve 74, andfree to turn thereon. The upper portion of the strap 83, thus passesfrom the top of the rod 81,down ward and around the bottom of the drumwhile the lower portion of the strap passes from a point on the rodbelow the drum up to and over the top of said drum. The consequence ofthis is that as the rod 81 is reciprocated the upper portion of thestrap 83 on the upward movement of the rod causes the turning of a drum84, in one direction, the lower portion of the strap winding on the drumduring this movement, while on the downward movement of the rod thelower portion of the strapcausesV a movement of the drum in the oppositedirection, the upper portion of the strap being wound upon the drum.This will be understood by reference to Figs. 18 and 19. To the shifterlever 70, is hunga rod 85, (Fig. 1,) the outer end of this rod having afinger 86, which projects upward so as to engage with the drum 84, atthe outer face of the same, as shown in Fig. 18,a nger 87, engaging withthe inner face of the drum and being carried by a sleeve 88, which ismounted on the rod 85, but is free to move longitudinally thereon, thissleeve being connected, by a spring 89, to an arm 90, at the outer endlof therod. In the outer face of the drum 84 is an opening 91 (Figs. 1and 19), for the reception of a pin 92, projecting inwardly from the hubof the crank 62 at the o uter end of the shaft 6l, and adjacent to thisopening and terminating in line with the same,is a beveled cam block 93on the drum. (See Figs. 18 and 19.) c

The operation of this driving mechanism is as follows: When the machineis knitting round and round for the production of tubular Work thedriving pulley 63 occupies the position shown in Fig. 1, the pins 64being in engagement with the bar 65 of the eccentric 66,and the bar 71being free from engagement with the lugs 72, of the sprocket wheel 73,so that the rotating movement of the pulley is imparted to the eccentricand'hence to the shaft 61 and bevel wheel 60, and from the latter to thebevel wheel 3 and cam ring 4. Under these circumstances there is nomovement of the sprocket wheels 73 and 77, rod 81, and drum 84, and thesaid drum is drawn inward on the sleeve 74, by means of the rod 85, andits finger 86, so that there can be no engagement of the pin 92 of thecrank 62, with the opening 91 in the drum. When it is de- IOC ITO

sired to change from round and round or circular to reciprocating or toand fro knitting, however, the shifting lever 70, is operated so as tomove the pulley 63 and its hub 67 longitudinally on the shaft 61,thereby carrying the pins 64 out of engagement with the bar 65,

and bringing the bar 71 into engagement with the lugs 72 of the sprocketwheel 73. The rotating movement of the pulley is therefore transmittedto the said sprocket wheel 73, and thence to the sprocket wheel 77 andcrank 79, thus effecting the reciprocation of the rod 81, and the backand forth movement of the drum 84. The same movement of the shifterlever acts through the medium of the rod and finger 87 to effect theoutward movement of the drum 84 on the sleeve 74, so as to cause the pin92 of the crank 62, to enter the opening 91 in the drum, the back andforth movement of which is thus transmitted, through the crank, to theshaft 61 and its pinion 60, and thence to the pinion 3 and cam ring 4.If, when the outward movement of therod 85, is effected, the crank 62 isnot in position for its pin to enter the opening 91 in the drum 84, theoutward movementof the said drum will be arrested by contact of itsouter face with the pin 92, the finger 86 and arm 90 at the outer end ofthe rod 85 continuing to move and thus imparting increased tension tothe spring S9, which acts upon the sleeve 88, carrying the finger 87,which bears upon the inner face of the drum. As soon, therefore, as thedrum 84 has been turned forward to such an extent that its opening 91 isbrought into line with the pin 92, the action ot' the spring 89, sleeveS8, and finger S7, causes said drum to move outward on the sleeve 74, soas to insure the entrance of the pin 92 into the opening 91, anyover-running of the drum so as to carry the opening past the pin beingprevented by the stop block 93, which comes into contact with the pinand prevents any farther forward movement of the drum independentlythereof. If the turning movement of the drum S4 is backward, the pin 92will ride over the beveled block 93 and spring into the opening 91 inthe rear of the same.

I will now describe the mechanism whereby the various changes in theoperation of the machine involved in the production of the pocket orbulge for the knitted tube are effected automatically. The downwardlyprojecting Shanks 28 of the fashioning needles 26 are acted upon byfashioning cam plates and 101, which are of diiferent radii and havetheir adjacent edges beveled as shown at m in Fig. 2, so that as the camplates are moved in the direction of the arrows, Fig. 2, the fashioningneedles will have their lower ends drawn inwardly by the beveled ends ofthe plates 101, so as to withdraw the bits of these needles from thecontrol of the knitting cams, while when the plates are moved in theopposite direction, the depending shanks of the needles are acted uponby the beveled ends of the plates 100 andare moved outward, so as tobring the bits of the needles again into the range of the knitting cams.This construction is substantially the same as that set forth in myformer patent, but in the present machine the toothed slides carryingthe fashioning cams have ledges 103, which serve as bearings for thelower ends of the shanks of the fashioning needles after the latter havebeen pushed inward by the cam plates 101, thus preventing the droppingof said needles so as to carry their bits below the line of the knittingcams when said needles are out of action. This will be understood onreference to Fig. 2l. The lower ends of the shanks 28, of the fashioningneedles, are bent outwardly to a slight extent, as shown in Figs. 1, 13and 21,so that, in inserting a needle into the machine, it will notstrike and be stopped by either of the plates 100, and each of theslides 102 at a point beneath the beveled ends of the cams 100 and 101has a beveled portion 95, whereby as the shank of a needle passes underthe action of the cam 101, the lower end of said shank, if it chances tobe below the level of the ledge 103, will be raised on to said ledge andjamming of the needle will thereby be prevented. 'lhe toothed slides 102are acted upon by pawls 104, carried by reciprocated bars 105, hung tothe opposite ends of a lever 106, which is mounted on a stud 107 securedto the frame 1, one arm of this lever 106 carrying an anti-frictionroller 108 which is acted upon alternately by cam shaped tappets 109 onsegmental plates 110 carried by a drum 96 on a shaft 111, undue movementof the lever 106 in either direction being prevented by contact of setscrews 97 on said lever with stop lugs 9S on the frame 1. The shaft 111has a sprocket wheel 113, which is connected by a chain belt 114 with asprocket Wheel 115 on the shaft 76, which carries the sprocket wheel 77, (see Fig. 19,) so that as said shaft 76 is rotated in the mannerhereinbefore set forth, the shaft 111 is likewise rotated and thetappets 109 are caused to act alternately upon the roller 108 of thelever 106, thus imparting a vibrating movement to the latter andreciprocating the pawl carrying bars 105. The plates 110 have lateralslots 94 for the reception of set screws 99, so that said plates can beadjusted laterally on the drum 96, and the extent of move ment impartedto the lever 106 by the tappets 109 thereby regulated. The two pawls 104of each bar 105, are in different horizontal planes on said bars, thepawls consisting simply of teeth let into recesses in the top and bottomof a central expanded portion of the bar as shown in Figs. 22, 23 and24, so that by elevating the outer or free end of either of the bars105, one of its pawls is caused to engage with the teeth of thecorresponding cam slide 102, while by lowering the outer end of eitherbar the other pawl of the same is caused to engage with said teeth,

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and, as one of the pawls of each bar is right handed and the other lefthanded, it follows that the rising and falling movement of the pawlcarrying bar is sufficient to change the direction of the movementimparted thereby to the cam carrying slide. The inner faces of the bars105 bear against the teeth of the slides 102, which serve to limit theinward movement of the bars. The eccentric 66 on the driving shaft 61has a sleeve 116, which is connected by a rod 117 (Figs. 2 and 4), to

an arm 118 on a rock shaft 119 mounted in suitable bearings upon theframe 1, so that, as the shaft 61 is either rotated or vibrated, arocking or vibrating movement will be imparted to said shaft 119. On therock shaft 119 is an arm 120, (Fig. 5,) which carries two pawls 121 and122, the pawl 121, engaging continuously with a ratchet wheel 123,mounted on a stud 124, (Fig. 25,) this stud also carrying a toothedwheel 125 with which the pawl 122 engages under the circumstanceshereinafter referred to. Secured to the ratchet wheel 123, is a sprocketwheel 126,

which carries a pattern chain 127, having at one side a projection 128,and on one side of the toothed wheel 125, is a projecting pin 129, (seedotted lines Fig. 5,) which extends into the path of the projection 128.During the operation of round and round knitting to produce tubular Workthe toothed wheel 125, is stationary, the pawl 122, acting upon a longtooth 130, of said wheel, as shown in Fig. 5, so as to fail to move thesame. When the desired length of tubular fabric has been produced,however, the projection 128 upon the pattern chain will strike the pin129, and move the wheel 125, to such an extent as to carry its longtooth beyond the pawl122, the latter then acting to rotate the wheel. Onthe outer face of the wheel 125, are three cams 131, 132 and 133, (seeFigs. l, 5, 27 and 28.) The cam 131 has a beveled end, as shown in Fig.28 and a thickened securing butt, as also shown in said gure, said buttbeing so much thicker p than the beveled end of the cam that the latterwill be held some distance away from the face of the wheel 125 and withits beveled portion toward said face of the wheel, and when the wheel isstopped, by the bringing of the long tooth 130 into the path of thedriving pawl, the beveled end of the cam will, as shown in Fig. 5, be inposition to overlap and draw toward the face of the wheel a pin 135,carried by a lever 136, which is hung to a bracket on the frame 1, theother arm of this lever having a slot 137 for thereception of a screw138 whereby it is connected to the lower end of a sliding rod 139,mounted in a bearing 140, on the bed 2, and carrying at its upper endtwo-cams 141 and 142, (see Fig. 1,) these camsbeing so located that whenthe rod is raised the cam 141, will act upon the antifriction roller 37,on the arm 36, of the switch plate shaft 31, so as partially to rotatesaid shaft and throw the switch plate into the position shown in Fig.15, in order to elevate the needles around one-half of the needlecylinder, while, when the slide rod is depressed, the cam 142, will actupon said antifriction roller 37, so as to shift vthe said plate fromthe position shown in Fig. 15, to that shown in Fig. 16, and thus bringthe needles down into operative position again. When the machine isknitting round and round the pin 135 of the lever 136 is under controlof the cam 131 and the rod 139 is depressed and the switch plate is inthe posltion shown in Fig. 116, all of the needles being in operation.On the first movement of the wheel 125, however, the pin 135 is releasedfrom the control of the cam 131 and the lever 136 is then raised by thespring 210 (Fig. 1) so as to raise the rod 139 and move the switch plate30 to the position shown in Fig. 15, where it remains until the wheel125 has completed its revolution and the pin 135 is again brought underthe influence of the cam 131. The cam 132, (Fig. 27,) acts upon a pin143, on one arm of a lever 144, hung to a stud 145, on the frame, theother arm of this lever acting upon a guided slide 146, which has anotch 147, for the reception of one of the pawl carrying bars 105, ofthe machine. The inner arm of the lever 144, has a pin 204,

which overlaps the inner arm of a like lever 148, hung to a stud 149 andact-ing upon' a slide 150, which has a notch 151, for receiving theother pawl carrying bar 105. The action of the cam 132, is therefore todepress the inner arms of the levers 144, and 148, and thereby elevatethe outer arms of the same and the slides 146, and 150, so as to throwthe lower pawls 104, ot' the bars 105, into operative position. When thewheel 125, has, however, made a half revolution, the cam 133, acts tirstupon the pin 143, of the lever 144, and then upon the lever 148, so asto elevate the inner arms of said levers and depress their outer armsand the slides so as to bring the upper pawls of the bars 105, intoengagement with the toothed edges of the cam slides 102,'thus reversingthe movement imparted to the latter, the levers and slides beingrestored to their original position by the cam 132, when the wheel 125,has completed a whole revolution. Owing to the overlapping of the levers144 and 148 the action of the cam 132, operates said leverssimultaneously so that both pawl bars are lifted simultaneously when thecam 132, acts, the levers being operated in succession by the cam 133,however, so as to drop the pawl bars and change the action of the pawls,first on one fashioning cam slide 102, and then on the other, as isrendered necessary by the alternate operation of said cam slides. Eachofthe pawl bars 105, is acted upon by a spring 152, which permits said barto yield outwardly, to permit the acting pawl to pass the teeth of thecam slide on the backward movement of the bar, and each of the pawl barcarrying slides 146 and 150, is acted upon by a spring actuated washer153, as shown in Fig. 29, so as t0 IOO be self-retaining in the positionto which it is adjusted, the tension of the spring and pressure of thewasher being regulated by manipulating the set screw 154. One of the camslides 102, carries a ring 155, and the other of said slides carries aring 156, the ring 155, being recessed for the reception'of the ring156, so that the outer peripheries of both rings are in the samevertical plane, as shown in Figs. and 3l. Surrounding and confining therings 155 and 156, is a split ring 157, which also bears upon projectingportions ot' the slides 102, as shown in Figs. 30 and 31, and this ring157 has beveled portions 158, which are acted upon by set screws 159, asshown in Figs. 1 and 7, the eect being to press the ring 157, upon theperipheries of the rings 155 and 156, and also downward upon the slides102, so that it"not only serves to retain the latter rigidlyin theirproper vertical position, but it also constitutes a friction brake toprevent undue movement of either slide under the action of the pawlbars. Adjustable stops 160 and 161 are also provided to limit positivelythe swinging movement of the slides 102, the stops 160 being vslottedfor the reception of their confining screws, and the stop 161,consisting cfa set screw having an eccentric stud, as shown in Figs.land 2, the slides coming into contact i `with this stud at one limit oftheir movement,

so that by partially turning the set screw, the stud may be movedlaterally until it is adjusted to the exact position required. In

order to preventthe movementof the toothed wheel 123, and sprocket wheel126, from being communicated to the wheel 125, a washer 162, isinterposed between the said wheel125 and the hub of the sprocket wheel126, this washer bearing upon a flattened portion of the stud 124, asshown in Figs. 25 and 26, so as to be incapable of turning on the stud.A

j similar washer 163, is interposed between the 139, a pin 172, on thebar being adapted to a slot 173, on said plate, so that while the` barwill be raised by the plate, it is free to kof the plate is alsopossible.

move longitudinally independently of the same, the slotbeing wider thanthe pin, so that a slight rise and fall of the bar independently In abearing 174,

on the frame is a rock shaft 175, having two arms 176, (Fig. 3,) and177, (Fig. 5,) the arm 176, being adapted to act upon the bar 168, toelevate the same slightly when the arm 177, is acted upon by a lug 178,on the pattern chain 127, (Fig. 5.) The lower arm 167, of the bar 168,is recessed at its outer end so as to form two shoulders 180, and 181,upon either of which the vibrating tappet 165 can act. When the machineis knitting round and round to produce tubular work, the bar 168 isdepressed by the action of the upper arm of the tappet 165, on. the end166, of said bar, as shown in Fig. 3, but as soon as the slide rod 139,has been raised on the first movement of the wheel 125, the shoulder180, of the lower arm 167, of the bar 168, comes into contact with thelower arm of the vibrating tappet 165, as shown in Fig. 32, and the bar168, is thereby moved outward so as to operate the shifter lever 70, andthus eect the change from round and round to to-and-fro knitting in themanner hereinbefore set forth. Whenever it is desired `to stop themachine automatically, as for instance, in changing the needlecylinders, the lug 178, of the chain 127, actson the arm 177, ot therock shaft 175, and thus causes the arm 176 of said shaft partially tolift the bar 168, so that its shoulder 181, will come under theinfluence of the lower arm of thevibrating tappet 165, as shown in Fig.33, and there will be a partial movement of the bar 168, and shifterlever 170, so as to move the clutch hub 67, ,to the intermediateposition, and thus stop the machine. The shifter rod 170, has anupwardly projecting arm 182, which, as said rod is moved so as tooperate the shifter lever to change the machine from to-and-fro to roundand round knitting, strikes the end of one of the cam slides 102, asshown in Fig. 2, and imparts to the same the nal impulse necessary torestore the last fashioning needle on that side of the machinetooperative position, so that the cam ring can then continue its forwardrotation for the production of tubular work. If the pawls 104, wererelied upon to impart this last impulse to the cam slide,anotherreciprocation of the cam ring would `be necessary in order torestore the pawls to their normal position and an extra courseofstitches would thus be produced.

Having thus described my invention, I claim and desire to secure byLetters Patent- 1. The combination of the needle cylinder having adownwardly projecting iinger, with the bed having a support for saidfinger and means for securing the finger to the bed, substantially asspecified.

2. The combination of` the needle cylinder having a downwardlyprojecting finger, the bed having a set screw serving as a support forsaid finger and means for securing the finger to the bed, substantiallyas specified.

3. The combination of the needle cylinder having a downwardly projectingnger `with beveled face, the bed having a beveled recess in which saidfinger fits, a vertical support for the linger and means for securingsaid iinger within the recess of the bed, substantially as specified.

4. The combination of the needle cylinder having a downwardly projectingfinger, the

bed having a support for said finger, and a clamping yoke and set screwwhereby the finger is laterally confined to the bed, substantially asspecified.

5. The combination of the needle cylinder having a downwardly projectingfinger with beveled face, the bed having a beveled recess for thereception of said finger and a vertical support therefor, and a clampingyoke and set screw whereby the finger is secu red Within the recess,substantially as specified.

6. The combination of the needles, the needie cylinder having anannular' groove there- 1n, and a needle retaining ring adapted to saidgroove and composed of Aseparable sections, and having, between theadjoining sections, a gap for the withdrawal of a needle, substantiallyas specified.

7. The combination of the needle carrier, the needles, some of whichhave longer bits than the others, a pivoted switch cam so mounted inrespect to the needles that when in one position it will engage with thelong bits and raise the needles, and when in the opposite position willengage with said long bits and depress the needles, a projection on saidswitch cam, a spring acting upon said projection and serving to hold theswitch cam in its eXtreme positions, and means for shifting said switchcam from one position to the other, substantially as specified.

8. The combination of the needle cylinder and its needles, some of whichhave longer bits than others, a switch cam mounted in respect to theneedles so as to raise the long bitted needles out of' action when inone position and restore them when in the other pol sition, a rock shaftcarrying said switch cam,

a pin or projection on said rock shaft, and a spring actingupon said pinor projection and serving to retain it in its extreme positions,substantially as specified.

9. The combination of the needle cylinder, the needle operating cams,needles, some of which are movable into and out of range with said cams,fashioning cams for acting on the lower portions of the needle shanks toso move them into and out of action, and a rest for the lower ends ofthe needles when they are out of action, substantially as specified.

10. The combination of the needle carrier, the knitting cams, theneedles, some of which are movable into and out of range with saidknitting cams, some of the fashioning needles havingbent lower ends, andfashioning cams for acting on the'lower portions of said fashioningneedles to movev them into and out of range of the knitting cams,substantially as specified,

11. The combination of' the needle carrier, the knitting cams, theneedles, some of which are movable into and out of range of saidknitting cams, the fashioning cams acting upon the lower portions of theneedles to move them into and out of range of said knitting cams, andcam carriers having beveled portions at the points where the movement ofthe needle is effected, substantially as specified.

12. The combination of the needle cylinder, the knitting cams, needles,some of which are movable into and out of range of said knitting cams,fashioning cams acting on the Shanks of the needles to move them intoand out of range of the knitting cams, slides carrying said fashioningcams, means for reciprocating said slides, and afriction ring acting asa'brake upon the slides, substantially as specilied.

13. The combination ofthe fashioning cams, and their slides, means forreciprocatingv the latter, a ring bearing upon the slides and havingbeveled portions and set screws acting upon said beveled portions of theretaining ring to press it down upon the slides substantially asspecified.

14. The combination of the fashioning cams, slides carrying said cams,means for reciprocating said slides, rings, one attached to one slideand the other to the opposite slide, and an encircling ring bearing uponsaid cam Slides and their rings, substantially as specified.

15. The combination ofthefashioning cams, slides carrying said cams,means for reciprocating the slides, and adjustable stops for limitingthe movement of the slides in either direction, substantially asspecified. l

16. Thecombination of the fashioning cams, slides carrying said cams,means for reciprocating said slides, and an eccentric stop for limitingthe approach of the slides toward each other, substantially asspecified.

17. The combination of the needle cylinder, the knitting cams, theneedles, some of which are movable into and ont of range of said cams,the fashioning cams for acting on the needles to move them into and outof action,

toothed slides carrying saidv cams, reciprocated rack bars having fixedpawls in different planes for engaging with said.Y toothed slides, andmeans for raising and lowering said reciprocated bars so as to throw oneor other ofthe pawls of each bar into operation, substantially asspecified.

18. The combination of the needle cylinder, the knitting cams, theneedles, some of which are movable into and out of range of saidknitting cams, the fashioning cams acting on the needles to move theminto and out of' action, toothed slides, reciprocated bars bearingagainst the toothed faces of said slides, pawls carried by said bars andarranged in differenthorizontal planes and means for raising andlowering the bars so as to throw one or other of the pawls of each barinto operation, substantially as specified.

19. The combination of the toothed slides with the reciprocated rackbars having recesses or notches in opposite faces, and pawls consistingof blocks secured in said recesses and projecting therefrom so as toengage with the toothed slides, substantially as specified.

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20.. The combination of the cam boX,tl1e driving shaft, gearingconnecting said shaft to the cam box, a clutch sleeve having a pulleyfor the driving belt, means for connecting said sleeve to the drivingshaft, a sprocket wheel also adapted to engage with the clutch sleeve, asecond sprocket wheel having a crank arm, a belt for connecting saidsprocket wh eels, a rod connected to the crank arm, a drum in connectlonwith said rod, and a clutch for connecting said drum to the drivingshaft, substantially as specied.

2l. The combination of the driving shaft of the machine, the armthereon, a vibrated drum,.an opening in one of said parts, a pin orprojection on the other part for engaging wlth sald opening, a shifterrod having fingers embracing the drum, one of said iingers being free tomove on the rod, and a spring connecting said linger to a projection onthe rod, substantially as specified.

22. The combination of the driving shaft and 1ts arm, having,r aprojecting pin, the vibrated drum having an opening for the reception ofsaid pin and a beveled block having an abrupt face in line of saidopening, substantially as specified.

23. The combination of the needle cylinder, the knitting cams, theneedles, some of which are movable into and outof range of said cams,fashioning cams acting on the needles to move them into and out ofaction, toothed slides carrying said fashioning cams, bars having pawlsfor engaging with said toothed slides, a lever carrying said bars, and arotated drum having opposite tappets for acting on the said lever andmoving the same first in one direction and then in the oppositedirection, substantially as specified.

24. The combination of the pawl carrying bars, the lever for actuatingthe same, a rotating drum and a sleeve thereon carrying tappets foracting on said lever, said sleeve being made in sections adjustablelaterally in respect to each other to vary the action of the gaplpetsupon the lever, substantially as speci- 25. The combination of thedriving shaft, a power-driven clutch-member adapted to engage directlywith a clutching element on said shaft, other mechanism for imparting toand fr0 movement to the shaft, said mechanism having an element withwhich the powerdriven clutch-member is also adapted to engage, a rockshaft having tappets thereon, means for vibrating said rock shaft, a barhaving arms one of which is adapted to be acted on by one of saidtappets and the other by the opposite tappet, means for connecting saidbar to the clutch-member, and means for raising and lowering the bar soas t0 carry its arms respectively into and outof range of the tappets,substantially as specified.

2G. The combination of the shifting clutch member, the vibrated shafthaving tappets thereon, a bar connected to the shifting clutchmember andhaving a bifurcated end or arms movable into and out of range of thetappets, one of said armshaving a notched end, a pattern chain, andmeans whereby said chain is caused to lift the bar for the action of thetappets so as to effect a partial movement of the shifting clutch-memberto throw the machine out of gear, substantially as specified.

27. The combination of the needle cylinder, the knitting cams, theneedles, some of which are movable into and out of range of saidknitting cams, fashioning cams for acting on the needles to move theminto and out of action, slides carrying said cams, means forreciprocating the slides, a clutch for changing the machine from to andfro to round and round knitting, a clutch operating rod, and a bar ortin ger carried by the said rod and acting on one of said cam slides soas to impart the final impulse thereto, substantially as specified.

28. The combination of the pattern chain,

the sprocket wheel carrying the same, the ratchet wheel connected tosaid sprocket wheel, the toothed pattern Wheel, pawls for acting on saidtoothed wheels, a shaft or stud carrying the wheels and permitting themto turn loosely the'reon, and a Washer interposed between the toothedpattern wheel and the sprocket wheel, said washer being keyed to thepivot shaft or stud, substantially as specied.

29. The combination of the cam slides, the reciprocated bars carryingpawls in diierent planes for operating said slides, shifting 1evers andslides for effecting the raising and lowering of said bars, and thepattern wheel having cams for operating said levers, substantially asspecified.

30. The combination of the toothed cam slides, the reciprocated barshaving pawls for engaging with said slides, levers and slides forvertically shifting the said bars, one of said levers overlapping theother, and a pattern wheel having cams for acting on said levers,whereby the movement of one lever is imparted to the other, when saidlever moves in one direction,the levers moving independently of eachother in the opposite direction, substantially as specified.

3l. The combination of the toothed cam slides, reciprocated bars havingpawls in different planes engaging with said teeth, slides guided on theframe of the machine and engaging with said bars, levers acting on saidslides and a pattern wheel having cams for acting 011 said levers,substantially as specitied.

32. The combination of the toothed cam slides, the reciprocated barshaving pawls in different planes for acting on said slides, guided slidebars engaging with said pawl bars, levers acting on said slides, and africtional retaining device or brake acting upon each slide,substantially as specified.

33. The combination of the needle cylinder and its needles, the cam box,a switch cam for acting on the bits of some of the needles,

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an arm on the shaft of said switch cam, a clutch forming part of thedriving mechanism of the machine, mechanism for moving said clutch, avibrated tappet acting on a bar forming part of said mechanism, and aslide rod carrying said bar and having cams for acting upon the arm ofthe switch cam, substantially as specified.

34. The combination of the needles, a cylinder having ribs extending tothe top of the same so as to serve as sinkers for the stitches, theguided web holders working close to the top of the cylinder and eachnotched at its inner end so as to serve both asaweb holder and as ameans of knocking over the stitch, a grooved carrier for said webholders, a cam for acting upon the web holders to project and retractthe same, and means for operating said cam, substantially as specified.

35. The combination of the needles, the knitting cams for actuating thesame, cam slides having cams whereby said needles are caused to engagewith or are released from the control of the knitting cams, a lever anddevices carried thereby for operating said cam slides, means forvibrating said lever, and set screws and lugs whereby the movement ofthe lever in either direction is positively limited, one of saidelements being carried by each arm of the lever, and thekother by thefixe frame, substantially as specified. Y

In testimony whereof I have signed my name to this specification in thepresence of two subscribing Witnesses.

^ EMIL FRANCK. Witnesses:

EUGENE ELTERICH, HARRY SMITH.

